A vanilla node proxy that gives webpages a treat.
Clone this gist and simply run node index.js. Then configure
127.0.0.1:8484 as a proxy and you're good to go.
Have fun and be sure to report any pranks!
Last active
December 16, 2015 16:28
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Node April Fools Proxy
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| var http = require('http'), | |
| spawn = require('child_process').spawn, | |
| fs = require('fs'), | |
| parseUrl = require('url').parse; | |
| // read lolcat.jpg in current directory | |
| var lolcat = fs.readFileSync('lolcat.jpg'); | |
| var sendLolcat = function(req, res, pres) { | |
| /* | |
| * LOLCATS!!!!!!!! | |
| */ | |
| pres.headers['content-type'] = 'image/jpg'; | |
| delete pres.headers['content-length']; | |
| res.writeHead(pres.statusCode, pres.headers); | |
| var identify = spawn("identify", ['-']); | |
| identify.stdout.on('data', function(data) { | |
| var dimensions = data.toString().match(/ (\d+x\d+) /); | |
| if (dimensions) { | |
| dimensions = dimensions[1]; | |
| console.log('dimensions', dimensions, 'url', req.url); | |
| var convert = spawn('convert', ['-', '-resize', '' + dimensions + '\!', 'jpeg:-']); | |
| convert.stdout.pipe(res); | |
| convert.stderr.on('data', function(err) { | |
| console.log('err', err.toString()); | |
| }); | |
| convert.stdin.write(lolcat); | |
| convert.stdin.end(); | |
| } else { | |
| res.end(); | |
| } | |
| }); | |
| pres.pipe(identify.stdin); | |
| }; | |
| var rotateAndBlurHtml = function(req, res, pres) { | |
| console.log('body replace!'); | |
| res.writeHead(pres.statusCode, pres.headers); | |
| pres.setEncoding('utf-8'); | |
| pres.on('data', function(chunk) { | |
| // dont do this at home, kids | |
| chunk = chunk.replace(/<\/body>/, '<script>document.body.style.MozTransform="rotate(-3deg)"; document.body.style.webkitFilter="blur(3px)";</script></body>'); | |
| res.write(chunk); | |
| }); | |
| pres.on('end', function() { | |
| res.end(); | |
| }); | |
| }; | |
| var forwardResponse = function(req, res, pres) { | |
| res.writeHead(pres.statusCode, pres.headers); | |
| pres.on('data', function(chunk) { | |
| res.write(chunk); | |
| }); | |
| pres.on('end', function() { | |
| res.end(); | |
| }); | |
| }; | |
| http.createServer(function(req, res) { | |
| var u = parseUrl(req.url); | |
| u.method = req.method; | |
| // proxy request | |
| var preq = http.request(u, function(pres) { | |
| if (pres.headers['content-type'] && pres.headers['content-type'].match(/^image\//)) { | |
| sendLolcat(req, res, pres); | |
| } else if (pres.headers['content-type'] && pres.headers['content-type'].match(/^text\/html/)) { | |
| rotateAndBlurHtml(req, res, pres); | |
| } else { | |
| forwardResponse(req, res, pres); | |
| } | |
| }); | |
| preq.on('error', function(err) { | |
| console.log(err); | |
| }); | |
| preq.end(); | |
| }).listen(8484); |
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